README file for the Triple Collocation Error Model
Aug 3, 2012

BUILD & RUN

 ./make
 This will call the Makefile and build the ./tcem executable file


CONTENTS

There are several main.???.c files for different purposes

 main.tcem.c   
   Calculate the number of points used in TCEM 
     and the linear relationships between collocates
  * uncomment lines 105-108 in triplecol.c

 main.rmse.c
   Calculate TCEM uncertainties and relative uncertainties
  * uncomment lines 111-116 in triplecol.c 

 main.theta.c
   calcualate the hypothetical truth (experimental only)
  * uncomment lines 118-123 in triplecol.c

REFERENCES

  Fang, H., S. Wei, C. Jiang, and K. Scipal, 2012. Theoretical uncertainty 
  analysis of global MODIS, CYCLOPES and GLOBCARBON LAI products using a 
  triple collocation method. Remote Sensing of Environment, 124, 610-621.

  The original triple collocation model is developed and described in:
  Scipal et al. (2008). A possible solution for the problem of estimating 
  the error structure of global soil moisture data sets. GRL, 35, L24403, 
  doi: 10.1029/2008GL035599.

CONTACT

  Hongliang Fang (fanghl@lreis.ac.cn)

